Problem 32
By Supreme2023-03-15
Problem Statement :
Write a C program to read and store the roll no and marks of 20 students using array.
Code:
#include <stdio.h>
int main(){
//32. Write a C program to read and store the roll no and marks of 20 students using array.
printf("\tMarks-Entry");
printf("\n====================================");
int students,subjects,i,j;
printf("\n\nEnter The Number Of Students : ");
scanf("%d",&students);
printf("\nENter The Number Of Subjects : ");
scanf("%d",&subjects);
int marks[students][subjects+1];
for(i=0;i<students;i++){
printf("\n\nEnter Roll No. : ");
scanf("%d",&marks[i][0]);
for(j=0;j<subjects;j++){
printf("\nEnter Marks Of Subject [%d] : ",j+1);
scanf("%d",&marks[i][j+1]);
}
}
for(i=0;i<students;i++){
printf("\n\nRoll No. : %d",marks[i][0]);
for(j=0;j<subjects;j++){
printf("\nMarks Of Subject [%d] : %d",j+1,marks[i][j+1]);
}
}
return 0;
}
Description :
- This program is used to read and store the roll number and marks of 20 students using a 2D array.
- The program starts by including the standard input/output library.
- The main function is defined and the program asks the user to input the number of students and the number of subjects.
- A 2D array called "marks" is declared with the size of "students" rows and "subjects+1" columns. The "+1" is added to store the roll number of each student.
- Using two nested for loops, the program prompts the user to input the roll number and marks of each student.
- After the marks are entered, the program prints the roll number and marks of each student using two nested for loops.
- The program ends with returning 0 to indicate successful completion of the program.
Output Image:
